Payment Gateway for PayPal on WooCommerce < 9.2.1 - Unauthenticated Payment Bypass via Sandbox IPN Environment Confusion
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-345.
Summary
The Payment Gateway for PayPal on WooCommerce WordPress plugin before 9.2.1 does not verify that an incoming payment notification was confirmed in the store's configured payment environment or paid to the store's own merchant account before marking an order complete, allowing unauthenticated users to mark their own orders as paid using a genuine transaction from a payment sandbox they control.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Payment Gateway for PayPal on WooCommerce | before 9.2.1 | 9.2.1 | Patch available | CNA |
- Payment Gateway for PayPal on WooCommerce VendorUnknown Affected before 9.2.1 Fixed in 9.2.1 Patch available CNA
Remediation
- Fix · CNA Payment Gateway for PayPal on WooCommerce (Unknown) Fixed in 9.2.1
Timeline
- 2026-10-02 Threatist record created from CVE-2026-92400
- 2026-10-03 Alias added: GHSA-p33j-7gxx-7v4f
References
Sources
- CVE-2026-92400 · CVE Program
- CVE-2026-92400 · NVD
- FIRST EPSS
- GHSA-p33j-7gxx-7v4f · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences